Perch · Perca fluviatilis

Perch in the River Thurne (Trawl)

Largest measured perch: 9.6 cm

The largest perch measured in Environment Agency surveys of the River Thurne (Trawl) was 9.6 cm, recorded at Upstream Martham Ferry (Trawling) on 17 September 1986.

Across 31 measured perch, the median measured length was 8.6 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the River Thurne (Trawl).

See perch records across England →

Most recent observation18 September 1986Downstream Dungeon Corner (Trawling) · 1 fish

Largest measured perch: 9.6 cm
Median length: 8.6 cm
Fish measured: 31
Survey locations: 3

Individual EA measurements

Largest measured perch

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

Length	Survey date	Survey location	Survey ID
9.6 cm	17 Sept 1986	Upstream Martham Ferry (Trawling)	16892
9.6 cm	17 Sept 1986	Upstream Martham Ferry (Trawling)	16892
9.3 cm	17 Sept 1986	Upstream Martham Ferry (Trawling)	16892
9.2 cm	17 Sept 1986	Upstream Martham Ferry (Trawling)	16892
9 cm	17 Sept 1986	Upstream Martham Ferry (Trawling)	16892
9 cm	17 Sept 1986	Upstream Martham Ferry (Trawling)	16892
8.9 cm	17 Sept 1986	Upstream Martham Ferry (Trawling)	16892
8.8 cm	17 Sept 1986	Upstream Martham Ferry (Trawling)	16892
8.8 cm	17 Sept 1986	Upstream Martham Ferry (Trawling)	16892
8.8 cm	17 Sept 1986	Upstream Martham Ferry (Trawling)	16892

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where perch were found

Each point marks a survey location with at least one perch record.

Choose a point on the map to see what was recorded there.

Map points are approximate and don’t show fishing access. Check local permissions before visiting.

Place surveyed	First recorded	Last recorded	Visits finding perch
Downstream Dungeon Corner (Trawling)	18 Sept 1986	18 Sept 1986	1
Upstream Martham Ferry (Trawling)	17 Sept 1986	17 Sept 1986	1
Upstream Candle Dyke (Trawling)	17 Sept 1986	17 Sept 1986	1

Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.

1986–1986

Survey records by year

Each bar shows how many survey visits recorded perch that year.

386

Fish measured by surveyors

Measured length distribution

See how the 31 measured fish were spread across different length ranges.

Smallest: 7.2 cm
Lower quarter: 8.3 cm
Median: 8.6 cm
Upper quarter: 8.8 cm
Largest: 9.6 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Thurne (Trawl)

Compare other species with enough survey and measurement data for a detailed page.

Roach Smelt Common bream

Before you fish

Good to know

These are past survey records, so the fish present today may be different. Map points are approximate—check local access, permissions and fishing rules before visiting.

Learn how RiverFish uses the data →